feat: seperate chat page

app/hooks/useDragSideBar.ts

@@ -0,0 +1,83 @@
+import {
+  DEFAULT_SIDEBAR_WIDTH,
+  MAX_SIDEBAR_WIDTH,
+  MIN_SIDEBAR_WIDTH,
+  NARROW_SIDEBAR_WIDTH,
+} from "@/app/constant";
+import { useAppConfig } from "../store/config";
+import { useEffect, useRef } from "react";
+import useMobileScreen from "@/app/hooks/useMobileScreen";
+
+export default function useDragSideBar() {
+  const limit = (x: number) => Math.min(MAX_SIDEBAR_WIDTH, x);
+
+  const config = useAppConfig();
+  const startX = useRef(0);
+  const startDragWidth = useRef(config.sidebarWidth ?? DEFAULT_SIDEBAR_WIDTH);
+  const lastUpdateTime = useRef(Date.now());
+
+  const toggleSideBar = () => {
+    config.update((config) => {
+      if (config.sidebarWidth < MIN_SIDEBAR_WIDTH) {
+        config.sidebarWidth = DEFAULT_SIDEBAR_WIDTH;
+      } else {
+        config.sidebarWidth = NARROW_SIDEBAR_WIDTH;
+      }
+    });
+  };
+
+  const onDragStart = (e: MouseEvent) => {
+    // Remembers the initial width each time the mouse is pressed
+    startX.current = e.clientX;
+    startDragWidth.current = config.sidebarWidth;
+    const dragStartTime = Date.now();
+
+    const handleDragMove = (e: MouseEvent) => {
+      if (Date.now() < lastUpdateTime.current + 20) {
+        return;
+      }
+      lastUpdateTime.current = Date.now();
+      const d = e.clientX - startX.current;
+      const nextWidth = limit(startDragWidth.current + d);
+      config.update((config) => {
+        if (nextWidth < MIN_SIDEBAR_WIDTH) {
+          config.sidebarWidth = NARROW_SIDEBAR_WIDTH;
+        } else {
+          config.sidebarWidth = nextWidth;
+        }
+      });
+    };
+
+    const handleDragEnd = () => {
+      // In useRef the data is non-responsive, so `config.sidebarWidth` can't get the dynamic sidebarWidth
+      window.removeEventListener("pointermove", handleDragMove);
+      window.removeEventListener("pointerup", handleDragEnd);
+
+      // if user click the drag icon, should toggle the sidebar
+      const shouldFireClick = Date.now() - dragStartTime < 300;
+      if (shouldFireClick) {
+        toggleSideBar();
+      }
+    };
+
+    window.addEventListener("pointermove", handleDragMove);
+    window.addEventListener("pointerup", handleDragEnd);
+  };
+
+  const isMobileScreen = useMobileScreen();
+  const shouldNarrow =
+    !isMobileScreen && config.sidebarWidth < MIN_SIDEBAR_WIDTH;
+
+  useEffect(() => {
+    const barWidth = shouldNarrow
+      ? NARROW_SIDEBAR_WIDTH
+      : limit(config.sidebarWidth ?? DEFAULT_SIDEBAR_WIDTH);
+    const sideBarWidth = isMobileScreen ? "100vw" : `${barWidth}px`;
+    document.documentElement.style.setProperty("--sidebar-width", sideBarWidth);
+  }, [config.sidebarWidth, isMobileScreen, shouldNarrow]);
+
+  return {
+    onDragStart,
+    shouldNarrow,
+  };
+}